JP4062473B2 - Lamp socket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lamp socket.
[0002]
[Prior art]
A conventional lamp socket is disclosed in Japanese Patent Application Laid-Open No. 11-242973. As shown in FIG. 11, the lamp socket 1 is constructed by integrally assembling a bulb holder 3 capable of holding a bulb 2 and a connector housing 5 having a hood portion 4 into which a mating connector can be fitted. Has been. The connector housing 5 has a disc portion 7 formed on the bottom surface side of the hood portion 4, and a plurality of projecting walls 8 project from the peripheral portion of the disc portion 7 on the opposite side to the hood portion 4. The end of the valve holder 3 is fitted inside these protruding walls 8. The lamp socket 1 is fixed by attaching the bulb holder 3 side to the lamp panel 9.
[0003]
[Problems to be solved by the invention]
In the lamp socket 1 described above, the connector housing 5 and the bulb holder 3 are held together by providing a locking means between the protruding wall 8 and the bulb holder 3, for example. However, when an external force is applied in the lateral direction to the tip of the hood portion 4 when, for example, the mating connector is fitted to the connector housing 2, the action of the lever causes the vicinity of the protruding wall 8 on one side to be the other side. There is a possibility that a large force is applied to the protruding wall 8 and the protruding wall 8 comes off the valve holder 3.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a lamp socket in which a holding force between a bulb holder and a connector housing is improved.
[0004]
[Means for Solving the Problems]
The invention of claim 1, a valve holding body provided with a terminal fitting to be connected to a possible and its electrode portion accommodating the electrode portion of the valve, and a connector housing with a mateable receptacle a counterpart connector a, wherein the end face opposite to the insertion side of the valve in the valve holding body, by being assembled butted and the end face opposite to the mating side of the mating connector in the connector housing, wherein A lamp socket in which a part of a terminal fitting is integrated in a form protruding into the hood portion, and an outer peripheral portion of one end face of the bulb holder and the connector housing that face each other The projecting wall along both the butting direction, a plurality of intermittently arranged annularly and projecting,
The other end surface is characterized in that each of the protruding walls can be individually tightly fitted and provided with a groove having a wall surface sandwiching the protruding wall from the inside and outside in the radial direction .
[0006]
According to a second aspect of the invention, there is provided a connector described in claim 1, whereas the locking projection on the outer surface of the protruding wall is protruded, the inner surface of the groove the locking projection engageable with the lock hole is concave It is characterized by where it is installed.
[0007]
Operation and effect of the invention
According to the present invention, in one of the valve holder and the connector housing to be butted to each other, projecting walls along the butting direction twin side it is projected in an arrangement forming a plurality intermittent cyclic, Each protruding wall is closely fitted into a corresponding groove provided on the other side. Thereby, since the protruding wall is sandwiched between the inner and outer wall surfaces of the groove portion, the holding force is improved as compared with the conventional case in which the other side is inserted between the protruding walls.
[0009]
According to the second aspect of the present invention, the holding force between the valve holder and the connector housing is further improved by engaging the lock protrusion and the lock hole with each other.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a side sectional view of the lamp socket 10 of the present embodiment, and FIG. 2 is a front view of the lamp socket 10. The lamp socket 10 is configured by integrally assembling a bulb holder 11 for holding a bulb (not shown) and a connector housing 30 into which a connector can be fitted. In the following description, the side on which the valve is mounted on the valve holder 11 (left side in FIG. 1) is the front side.
[0011]
The valve holder 11 includes a valve holder body 12 made of synthetic resin and a plurality of terminal fittings 26 attached to the valve holder body 12. As shown in FIGS. 3 to 6, the valve holder body 12 has a cylindrical shape that opens back and forth, and includes a mounting portion 13 that can accommodate the electrode portion of the valve on the front side. A pair of elastic holding pieces 15 project from the mounting portion 13 so that the electrode portion of the bulb can be elastically held. A plurality of terminal fittings 26 can be mounted in the mounting portion 13. The terminal fitting 26 is not described in detail, but as shown in FIGS. 1 and 2, an elastic contact piece 27 that can elastically contact the electrode portion of the valve, and a hood portion 31 of the connector housing 30 described later. And a connecting portion 28 that can be connected to a female terminal fitting (not shown).
[0012]
The outer periphery on the rear end side of the mounting portion 13 is enlarged in the radial direction to form a cylindrical portion 17. The valve holder 11 is assembled to the connector housing 30 so that the rear end edge of the cylindrical portion 17 abuts. Further, from the outer peripheral portion of the rear end edge of the cylindrical portion 17, extending pieces 18 extending in a fan shape in the radial direction with respect to the axial center of the cylindrical portion 17 are provided at a total of four locations with predetermined intervals. ing. Furthermore, a protruding wall 19 protrudes from the tip of each extending piece 18 toward the rear (that is, the abutting direction with the connector housing 30). The four protruding walls 19 are arranged so as to form an annular shape intermittently about the axis of the cylindrical portion 17. On the outer surface of each protruding wall 19, a locking projection 21 for locking with the connector housing 30 is provided. Further, a positioning projection 23 for positioning with the connector housing 30 protrudes from the proximal end portion of two adjacent extending pieces 18 among the four extending pieces 18. Further, four mounting projections 25 are provided on the outer peripheral surface of the front end side of the cylindrical portion 17, and these mounting projections 25 are used for mounting the lamp socket 10 to a lamp panel or the like (not shown).
[0013]
On the other hand, the connector housing 30 is formed of a synthetic resin material, and as shown in FIGS. 7 to 10, includes a rectangular tube-shaped hood portion 31 that can be opened rearward and can be fitted with a connector (not shown). . In addition, a disk portion 32 connected to the end portion of the hood portion 31 is provided on the front side of the connector housing 30. A plurality of terminal insertion holes 34 are opened in the disk portion 32 at positions corresponding to the bottom surface of the hood portion 31, and the connection portions 28 of the terminal fittings 26 protruding from the valve holder 11 side are respectively provided in the hood portion 31. It is possible to pass through. In addition, a pair of positioning holes 35 corresponding to the pair of positioning protrusions 23 of the valve holder 11 are opened in the vicinity of the outer peripheral edge on the front surface side of the disc portion 32. The valve holder 11 and the connector housing 30 can be assembled so that the rear end edge of the cylindrical portion 17 abuts the disc portion 32. At that time, the positioning projection 23 is fitted into the positioning hole 35. Thus, they are positioned in the direction around the axis.
[0014]
Further, an outer cylinder part 37 is provided on the outer side of the outer peripheral part of the disk part 32, and a concave part 38 is formed on the front side of the connector housing 30 by the outer cylinder part 37 and the disk part 32, The rear end portion of the valve holder 11 can be accommodated here. In addition, four alignment walls 39 are arranged from the outer cylinder portion 37 into the recess 38 with a predetermined interval. A predetermined extending piece 18 is accommodated between the alignment walls 39 so that the positions of the valve holder 11 and the connector housing 30 in the direction around the axis are defined. Yes. Further, in the recess 38, four groove portions 41 are intermittently provided in an annular shape at a position corresponding to the protruding wall 19. More specifically, as shown in FIG. 8, the groove portion 41 includes an inner cylinder portion 42 that extends rearward from the outer peripheral edge of the disc portion 32, and a bottom wall portion 43 that extends from the end edge in the outer peripheral direction. The projecting wall 19 can be closely fitted between the outer cylinder portion 37 and the inner cylinder portion 42. In addition, a lock hole 44 corresponding to each lock protrusion 21 of the valve holder 11 is recessed in the inner surface of the outer cylinder portion 37, and the valve holder can be engaged by engaging the lock protrusion 21 therein. 11 and the connector housing 30 can be locked.
[0015]
The present embodiment has the above configuration, and the operation thereof will be described next.
To assemble the valve holder 11 and the connector housing 30, the cylindrical portion 17 of the valve holder 11 is aligned with each other around the axis so that a predetermined extending piece 18 is placed between the alignment walls 39. The disk portion 32 of the connector housing 30 is made to abut. Then, first, the connection portion 28 of the terminal fitting 26 protruding from the valve holder 11 protrudes into the hood portion 31 through each terminal insertion hole 34 of the disc portion 32. Subsequently, each projecting wall 19 is closely fitted into the groove 41. When the edge of the cylindrical portion 17 of the valve holder 11 abuts against the disc portion 32 of the connector housing 30, the lock protrusion 21 is fitted into the lock hole 44 and engaged, and the valve holder 11 and the connector housing 30 are locked. It will be in the state. In this way, the lamp socket 10 in which the bulb holder 11 and the connector housing 30 are assembled together is completed.
[0016]
The lamp socket 10 is used in a state where the bulb holder 11 side is attached to a lamp panel or the like, the bulb is attached to the mounting portion 13, and the mating connector is fitted to the hood portion 31 of the connector housing 30. . For example, an external force may act on the connector housing 30 during the operation of attaching and detaching the connector to the hood portion 31 and other operations. In particular, when the tip of the hood portion 31 receives an external force in a direction orthogonal to the abutting direction with the valve holder 11, one side of the abutting portion receives a larger force with the other side as a fulcrum due to the action of the lever. Become.
However, in the lamp socket 10 according to the present embodiment, the protruding wall 19 is provided on the bulb holder 11 along the abutting direction with the connector housing 30, and the protruding wall 19 is formed in the groove 41 provided in the connector housing 30. It is closely fitted. Thereby, since the protruding wall 19 is tightly sandwiched between the wall surfaces of the groove portion 41 (the inner cylinder portion 42 and the outer cylinder portion 37), the valve holder is simply placed inside the protruding wall 8 as in the prior art. The holding force between the valve holder 11 and the connector housing 30 is improved as compared with the case where 3 is inserted. Therefore, it is possible to prevent the connector housing 30 and the valve holder 11 from being detached due to an external force.
[0017]
Further, in the lamp socket 10 of the present embodiment, a plurality of protruding walls 19 are provided on the outer periphery of the bulb holder 11 so as to form an annular shape intermittently. Therefore, even when the above-described lever action is applied in any direction orthogonal to the abutting direction, the protruding wall 19 and the groove 41 are fitted in the vicinity of the portion where the load is applied. A holding force between the holding body 11 and the connector housing 30 is ensured.
Furthermore, in this embodiment, since the valve | bulb holding body 11 and the connector housing 30 are locked by the lock protrusion 21 and the lock hole 44 engaging, the retention strength between both is improved more.
[0018]
The technical scope of the present invention is not limited by the above-described embodiments, and, for example, those described below are also included in the technical scope of the present invention.
(1) In the above embodiment, the protruding wall 21 is provided in the valve holder 11 and the groove 41 is provided in the connector housing 30. However, according to the present invention, these may be provided on the opposite sides.
(2) In the above embodiment, a plurality of protruding walls 19 are intermittently provided in an annular shape. However, according to the present invention, the protruding wall may be singular or plural, or may be a continuous annular shape. It does not have to be annular.
(3) In the above embodiment, the direction in which the valve is inserted into the valve holder 11, the mating direction of the mating connector into the hood portion 31, and the direction in which the valve holder 11 and the connector housing 30 are abutted (assembly direction). However, according to the present invention, these directions do not have to coincide with each other. For example, the connector housing is abutted and assembled from the direction perpendicular to the insertion direction of the valve into the valve holder. Also good.
[Brief description of the drawings]
1 is a cross-sectional view of the lamp socket according to the present embodiment taken along line AA in FIG. 2. FIG. 2 is a front view of the lamp socket. FIG. 3 is a side view of the bulb holder body. FIG. 5 is a front view of the valve holder body. FIG. 6 is a rear view of the valve holder body. FIG. 7 is a side view of the connector housing. -C cross-sectional view [Fig. 9] Rear view of connector housing [Fig. 10] Front view of connector housing [Fig. 11] Side cross-sectional view of conventional lamp socket [Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Lamp socket 11 ... Bulb holder 19 ... Projection wall 21 ... Lock protrusion 26 ... Terminal metal fitting 30 ... Connector housing 31 ... Hood part 41 ... Groove part 44 ... Lock hole

Claims (2)

And can accommodate the electrode portion of the valve comprises a valve holder having a terminal fitting to be connected to the electrode portion, and a connector housing with a mateable receptacle opponent connector, the valve holding body The end face of the terminal housing opposite to the insertion side of the valve and the end face of the connector housing opposite to the fitting side of the mating connector are abutted and assembled, so that a part of the terminal fitting is A lamp socket integrated in a form protruding into the hood,
On the outer peripheral portion of one of the end surfaces of the valve holder and the connector housing that are butted against each other, a plurality of projecting walls along both butting directions are intermittently arranged in an annular shape. As well as
A lamp socket , wherein the other end surface is provided with a groove portion having a wall surface on which each of the protruding walls can be closely and individually fitted and sandwiching the protruding wall from the inside and outside in the radial direction . It said one locking projection on the outer surface of the protruding wall is protruded Lamp according to claim 1, the inner surface of the groove, characterized in that the locking projection engageable with the lock hole is recessed socket.

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